Wheel-dressing mechanism



June 7, 1927. r 1,631,596

HJ-E. KEMI5TON WHEEL DRESSJQNG MECHANISM Fild July 12. 1923 3 Sheets-Sheet 1 ZZZ digi s June 7,1927. E. KEMPTON I I 1,631,595

WHEEL DRESSING MECHANISM med July 12,1925 a Sheets-Sheet z- June 7, 1927. H E. KEMPTON WHEEL DRESSING MECHANISM Filed July 1'2,v 1923 3 Siiets-Shaat3 .522; &

Patented June 7, 1927.

UNITED STATES I 1,631,596 PATENT OFFICE.

HERBERT E. KEMPTON, F FOND DU LAC, WISCONSIN, ASSIGNOR 'IO GIDDINGS G:

LEWIS MACHINE TOOL COMPANY, OF TION OF WISCONSIN.

FOND DU LAC, WISCONSIN, A. CORPORA- WHEEL-DRESSING MECHANISM.

Application filed July 12,

The invention relates generally to means for dressing and t-ruing the cutting surfaces of grinding wheels.

The primary object of the invention is to provide a light and sensitive wheel dressing mechanism which is operable to effect an accurate and precise truing of the cutting surface at considerable speed.

Another object is to provide a device of the above character which when not in use can be quickly moved into an inoperative position away from the grinding wheel, and which can be quickly and accurately returned to its operative position ready for immediate and instant use.

A further object is to provide a dressing device in the form of a single and permanent attachment which can be mounted ina convenient position upon the grinding wheel carriage, so as to be within easy reach of the operator and ready for use at all times.

Ancillary objects and advanta es will be made apparent by the following escription taken in connection with the accompanying drawings, wherein Figure 1 is a plan view showing a device embodying the features of my invention mounted in its operative position on a' grinding 'wheel'carria e. Fig. 2 is a side elevational view of t e structure shown in Fig. 1. Fig. 3 is a sectional view taken in the plane of line 33 of Fi 1. Fig. 4 is a sectional view taken in the p ane of line 44 of Fig. 2. Fig. 5 is a sectional view taken in the plane of line 5-5 of Fig. 2. Fig. 6 is a sectional view taken in the plane of line 66 of Fig. 1.

Referring to the drawings wherein I have illustrated the preferred em odiment of my invention, 10 represents agrinding element which is mounted upon a spindle 11 journaled in a casing 12 forming part of the grinding wheel carria e. Positioned adjacent to the grinding e ement 10 for truing the cutting surface 13, is a wheel dressin mechanism 14 which is pivot-ally mounted upon the side wall 15 of the casing 12.

The wheel dressing mechanism 14 comprises a main bod or supporting fitting 16' which is provide with a flange 17 fittingagainst a smooth vertical face 18 on the side wall 15. In the present instance, the bod 16 pivotall mounted upon a stud 19 whic is threade' 'into the wall 15, and is'provided with a lug or shoulder 20 fitting tightly 1923. Serial N0. 650,988.

against the face 18. A bore 21 formed in the flange 17 fits over the shoulder 20, and a.

coil spring 22 positioned on the stud 19 and abutting a ainst the inner end of a bore 23 formed in the outer side of the body 16, serves to hold the latter firmly against the face 18 at all times. The lower edge 24 of the flange 17 is curved or circular in form, and is formed at opposite sides with lu 25 adapted to selective y en a e a. stop p1n26 for different positions 0 t e body member 16. The lugs 25 are suflicientl spaced from each other so that the whee dressing device will be held in either of its extreme positions by its own Weight. A lever 27 threaded onto the outer end of the stud 19 is adapted to. lock the body 16 in any adjusted position.

The body '16 is formed with an elon a-ted bushing 28 which supports and gui es a reciprocable sleeve 29. To limit its extent of reciprocation, the sleeve 29 is provided with an integral head 30 at its forward end and is threaded at its opposite end to retain a nut 31. Relative rotation of the bushing and sleeve is prevented by an elongated key mem-- ber 32 which is secured to the latter and engages a keyway 33 on the inner surface of the former. Cylindrical guards or shields 34 secured to the head 30 and nut 31 telescope with the ends of the bushing 28, and protect the bearing surfaces from dust and other foreign material.

Means is provided for manually recipro eating the sleeve 29. Supported b the stud 19 between the head 16 and the loc ing lever 27 is a bushing 35 upon which is pivotally mounted a hand lever 36. Movements of the lever 36 are transmitted to the sleeve 29 through a link 37, the ends of which are attached, as by pins 38, to the lever 36 and head 30, respectively.

A rod 39 extending through the sleeve 29 and supporting a dressing tool holder 40 at its outer end is rigidly clamped in an adjusted position by the head 30, which is split at 41 for a portion of its length and is provided with a clamping screw 42. The rod 39, which is preferably made of steel tubing, extends through and is rigidly se-' which extends a clamping bolt 47. Slidably extending into the casing 44 is a tool rod 48, which is provided with a bore 49 at its outer end for the reception of a cutting tool mounting 50. Any suitable cutting tool, as, for example, a diamond 51, may be used. The mounting 50 is held within the here 49 by a set screw 52. The rod 48 is formed with a longitudinal groove 53 which engages a pin 54 extending inwardly from the casing 14, whereby the rod and casing are feathered to prevent relative rotation.

Means is provided for effecting a relative longitudinal adjnsti'nent of the rod 48 and casing 44. Mounted-within the casing 4-4 is a diamond ad'usting screw 55, one end of which extends t rough the rear wall 56 of the casin and to which is rigidly attached a knob 5 having a knurled gripping surface 58. A shoulder 59 on the screw engages the inner surface of the wall 56 to hold the screw 55 in position. The inner end of the screw 55 is threaded, as at 60, and adjnstably en' ages atapped bore 61 in the inner end 0 the rod 48.

By the above construction, the diamond 51 can be fed toward and from the grinding element 10 b 'adjustin the knob 57, and can be'locke in the a 'usted position by tightening theclamping olt 47. The diamond 51- ean also be fed back and forth across the grinding face 13 by oscillating the hand lever 36. The position of the holdor 40 can be adjusted for spindles 11 of different lengths by adjusting the relative position of the rod 39 and the sleeve 29. When not in use, the wheel dressing mechanism 14 can be swung about the stud 19 into its ino erative position and can be locked in suc osition by tightening the lever 27. The w heel dressing mechanism 14 can be returned to its operative position without having changed a single ad'ustment and is therefore immediately rea y for use.

The mechanism is sturdy and simple in construction, and accomplishes a rapid and accurate truing of the grinding wheel. Light and frequent cuts can be made because of the ease and convenience with which the device can be moved-into its operative and inoperative positions.

While I have illustrated the preferred em bodiment of my invention with considerable particularity, it should be understood that various modifications and alternative constructions may be made without departing from the spirit and scope of the invention as expressed in the appended'claims.

I claim as my invention:

1. A wheel ressing mechanism having, in combination; a pivotal body, lugs on said body, means for engagin said lugs to limit the ivotal movement 0 said body, means for coking said body in position, a reciprocable sleeve mounted in said body, means for tive reciprocating said sleeve, 2 rod adjustably mounted in said sleeve, a casing supported by said rod, a tool rod mounted in said cas ing, acutting tool supported by said tool rod, and means for ad usting the position body, and means for reciprocating said tool across said cutting surface.

A wheel dressing mechanism having in combination with a grinding wheel and a carriage, a body, means for ivotally mount-- ing said body upon said carriage, spaced lugs on said body, means for engaging said lugs to limit the pivotal movement of said body, means for locking said body in position, a dressing tool supported by said body, means for relatively adjusting said tool and said body, and means for moving said tool across the cuttin face of said grinding wheel.

4;. A w eel dressing mechanism having, in combination with a grinding wheel and a carriage, a bodypivotally mounted on a horizontal axis upon said carriage, and having an operative position in a horizontal plane and an inoperative position above said ,operative position, a pan of lugs on said body spaced apart slightly over a projection on said carriage position between said lugs to selectively engage with said lugs to hold said body in its operative or inoperaosition, a dressing tool supported by said ody, and means for moving said dressin tool along the face of said grinding 'w eel.

5. A wheel dressing mechanism having in combination with a grindin wheel and a carriage, a body, a stud for pivotally mounting said body upon said carriage, means for holding said body in any one of a plurality of angular positions, a-reciprocable member non-rotatably mounted in said body, a dress ing tool supported bay said member, a lever mounted on said stu and means connecting said lever and said member for imparting a reciprocatin v motion to said member, and dressing too I 6. A wheel dressing mechanism, having in combination, a support, a body mounted on said support, a sleeve mounted for reoiprocation in said body, means for'reciproeating said sleeve, a dressing tool supported by said sleeve, and means for adjusting said tool rotatably, longitudinally and transversely of said sleeve.

7. A wheel dressing device, having, in combination, a support, a body mounted on said support, a reeiprocable sleeve mounted in said body, means for reciprocating said sleeve, shields sup orted at opposite ends of said sleeve and tolesroping with said body, a dressing tool supported by said sleeve, and means for effecting a relatlve adjustment of said sleeve and said tool.

8. A wheel dressing mechanism having in vombination, a support, a body pivotally mounted on said support, a sleeve mounted for reciprocation in said body, means for recipror/atinp said. sleeve, a. rod mounted in said sleeve, means for longitudinally and m lalably adjusting said rod, a easing mounted transversely of said rod, a tool'rod in said casing, a cutting tool mounted on said tool rod, and means for longitudinally adjusting eaid tool rod in said casing.

9. A wheel dressing mechanism havin in combination, a support, a body mounted on cating said member, protective means en- (dosing the bearing surfaces of said body and said member for all positions of the latter, and a dressing tool carried by said member.

In testimony whereof, I have hereunto aflixed my signature.

HERBERT E KEMPTON.

CERTIFICATE OF CORRECTION.

Patent No. 1,631,596. Granted June 7, 1927, to

HERBERT E. KEMPTON.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, line 52, before the word "pivotally" insert the word "is"; page 2, line 102, claim 4, for the word "position" read "positioned"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 28th day of June, A. D. 1927.

- M. J. MOORE. Seal. Acting Commissioner of Patents. 

